APS dual teflon sealed ball bearings 5/16 x 1/2 x 5/32 inch Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 ...

APS dual teflon sealed ball bearings 5/32 x 5/16 x 1/8 inch Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 ...

APS dual teflon sealed ball bearings 5 x 10 x 4mm Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 pcs....

APS dual teflon sealed ball bearings 5 x 9 x 3mm Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 pcs....

APS dual teflon sealed ball bearings 5 x 9 x 3mm Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 pcs....

APS dual teflon sealed ball bearings 6 x 13 x 5mm Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 pcs....

APS dual teflon sealed ball bearings 6 x 15 x 5mm Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 pcs....

APS dual teflon sealed ball bearings 7 x 14 x 5mm Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 pcs....

APS dual teflon sealed ball bearings 8 x 14 x 4mm Steel retainers for durablity. Top & bottom dual sealed for maximum smoothness. Low to medium maintenance. 2 pcs....